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. 2015 Dec 6;47(2):191–196. doi: 10.1016/S2255-4971(15)30085-9

Table 1.

Surgeons participating per region.

Center-west 26 (11.5%)
Northeast 34 (15%)

North 15 (6.6%)

Southeast 123 (54.4%)

South 28 (12.4%)